The genes present in normal cells of the body which can cause cancer are known as

Options

A. Oncogenes
B. Carcinogens
C. Neogenes
D. Tumerogenes

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks about genes that are found in normal cells but have the potential to cause cancer.

2. **Identifying the Options**: The options provided are:
- Option 1: Oncogenes
- Option 2: Carcinogenes
- Option 3: Neogenes
- Option 4: Tumerogenes

3. **Definition of Oncogenes**: Oncogenes are genes that, when mutated or expressed at high levels, can lead to the transformation of normal cells into cancerous cells. They encode proteins that promote cell division and growth.

4. **Mechanism of Action**: The transformation occurs due to mutations such as insertions or deletions in the DNA sequence of these genes. This results in abnormal cell growth and division, which can lead to cancer.

5. **Examples of Oncogenes**: Some well-known examples of oncogenes include:
- CYCLIN-D
- HER2 (Human Epidermal Growth Factor Receptor-2), which is associated with breast cancer.

6. **Conclusion**: Based on the definitions and examples provided, the correct answer to the question is Option 1: Oncogenes.

**Final Answer**: The genes present in normal cells of the body which can cause cancer are known as oncogenes.

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